Home / 66,472,394.24-91,747,209.54-38,979,179.84

Finding the Fourth Proportional to 66,472,394.24, 91,747,209.54 and 38,979,179.84

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Solution

The fourth proportional to 66,472,394.24, 91,747,209.54 and 38,979,179.84 is: 53,800,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,394.24 : 91,747,209.54 = 38,979,179.84 : x
  2. Step 2: Convert to fraction form
    66,472,394.24/91,747,209.54 = 38,979,179.84/x
  3. Step 3: Cross multiply
    66,472,394.24x = 91,747,209.54 × 38,979,179.84
  4. Step 4: Simplify right side
    66,472,394.24x = 3,576,230,980,477,824.50
  5. Step 5: Solve for x
    x = 3,576,230,980,477,824.50/66,472,394.24
  6. Step 6: Final answer
    x = 53,800,243.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.